public class Utils{

    public static int max(int a,int b){
          return a > b ? a : b;
    }
    
    public static int add(int a,int b){
         return a + b;
    }

    public static int avg(int a,int b){
        int k = (a + b) / 2;
        if((a + b) % 2 == 0){
 	    return  (a + b) / 2;
        }
       return (a + b) / 2 + 1;
    }	
}